1.

Block A is kept on block B as shown in figure. It is known that acceleration of block A is `2 m//s^(2)` towards right and acceleration of block B is `3 m//s^(2)` towards right under the effect of unknown forces. Direction of friction force acting on A by B `(mu_(AB) = 0.3)` A. is necessarily towards rightB. may be towards rightC. may be towards leftD. may be zero

Answer» Correct Answer - B::C::D
B.C.D direction of friction do not depend on direction of force but it depends on direction of relative motion (velocity)


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